The fact that the ocean water changes its temperature very little with the seasons is an indication that it has a

If the mass of an object doubled while its volume is cut in half, its density would

_____is a radioactive gas that originates in the earth and can cause cancer when it is breathed into the lungs.

A 100 kg mass has a density of 400 kg/m3. Its volume is

If I increase the decibel level of a sound source from 30 to 50 decibels, its intensity increases by a factor of

In an electrically neutral atom the number of protons residing in the nucleus is equal to the number of

A 20 meter long wave travels 80 m in 1 second. Its frequency is

Which wave is the slowest to reach you from a source?

The most energetic form of electromagnetic radiation (light) is

The cardboard ice cream box in the freezer doesn’t feel as cold to you as the aluminum ice tray in the freezer because